Automatic Lube Definitions - Graco 309015B Design Manual

Automatic Lubrication Definitions
Definitions
"Pump on" time
The duration that the pump has power supplied to it. This is controlled by the timer. All injectors must fully dis-
pense within this time frame in a properly designed system.
"Pause interval" time
The duration between automatic lubrication cycles. This is also controlled by the timer. All injectors must fully vent
within this time frame in a properly designed system.
Vented
The state of the injector after pressure is relieved at the inlet. It also means the measured amount of grease is fully
transferred to the dispensing chamber of the injector.
Main supply line
The line that supplies lubricant from the pump module to the injector groups or banks.
Branch supply line
The line that branches off the main supply line to feed individual injector banks. The branch supply line prevents
system venting problems in cold weather by minimizing the amount of grease vented through the injector manifolds.
Feed line
The line that supplies lubricant from the injectors to the bearings.
309015 9